Study Evaluating Safety and Tolerability of Vabicaserin in Patients With Sudden Worsening of Schizophrenia

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This study will evaluate the clinical safety and tolerability of vabicaserin in Japanese subjects that have a sudden worsening of their symptoms of schizophrenia. The study will also assess the efficacy of vabicaserin and compare it to risperidone.

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Ages Eligible for Study:

20 Years to 65 Years (Adult)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

Male and female subjects between >=20 and =<65 years of age

Current diagnosis and DSM-IV-TR diagnosis of schizophrenia type (295.10, 295.30 and 295.90)